2011-01-05 05:08:36     USB Attach Detach issue in 2009R1 Kernel using BF533

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2011-01-05 05:08:36     USB Attach Detach issue in 2009R1 Kernel using BF533

John Peter (INDIA)

Message: 97184   

 

Hai,

 

 

I am using 2009 R1 linux distribution for my custom board BF533.When I continuously attach and detach the USB device for 10 times, finally the device is not getting detected and I am getting the following error message,

 

 

hub 1-0:1.0: unable to enumerate USB device on port 2

 

hub 1-0:1.0: unable to enumerate USB device on port 2

 

hub 1-0:1.0: unable to enumerate USB device on port 2

 

usb 1-2: device not accepting address 28, error -110

 

hub 1-0:1.0: unable to enumerate USB device on port 2

 

 

But after this if I remove and attach the USB device without resetting the hardware, it is getting detected without any issues. Can any one please clarify in this regard?

 

 

Regards,

 

 

Peter.

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2011-01-10 02:04:30     Re: USB Attach Detach issue in 2009R1 Kernel using BF533

John Peter (INDIA)

Message: 97287   

 

Hi All,

 

Could anyone help me in solving this issue.

 

 

 

Regards,

 

Peter.

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2011-01-10 05:51:53     Re: USB Attach Detach issue in 2009R1 Kernel using BF533

Sonic Zhang (CHINA)

Message: 97298   

 

What is your USB controller?

 

What is your USB device?

 

How do you connect your USB controller to bf533?

 

What is your kernel config file?

 

What is your kernel boot log?

 

Without all these informations, no one can help you.

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2011-01-13 00:06:35     Re: USB Attach Detach issue in 2009R1 Kernel using BF533

John Peter (INDIA)

Message: 97411   

 

Hi,

 

We have custom board where BF533 is connected with Renesas USB HC(2 Ports).

 

The USB HC controller used here is Renesas HC & the issue is not specific to any particular USB device. We have tried in many USB devices & the same issue is faced. It can be even simulated in Sandisk USB Flash disk.

 

The Renesas USB HC is connected to the Blackfin using EBIU AMS bank. The Renesas HC has 2 ports & the devices are tested by continously attaching & dettaching in the port. The issue is happening in the root level(after loading the uImage) & not during the boot stage.

 

 

Please let me know if any further info is needed in this regard.

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2011-01-13 01:46:01     Re: USB Attach Detach issue in 2009R1 Kernel using BF533

Sonic Zhang (CHINA)

Message: 97413   

 

We have no Renesas USB HC. The same test passes against bf527 on chip MUSB driver. It looks a bug in Renesas hardware or driver. Please contact Renesas for help.

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